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the frequency of a light wave is the same when the light travels in ethyl alcohol or in carbon disulfide find the ratio
if you are on a carousel where would the rider experience the greatest centripetal acceleration greatest tangential
the ice maker inside a refrigerator makes ice cubes at 00degc from water that is at 137degc when it first enters the
a piece of iron is heated with a torch to a temperature of 648 k how much more energy does it emit as blackbody
dna-reading tool for quick identification for species a biologist an a zoologist at the university of florida were the
a typical flying insect applies an average force equal to twice its weight during each downward stroke while hovering
question 1 how many moles of sucrose are there in 200 l of a 0500 molar solution express your answer in moles to three
a uniform chain of length l is released from rest on a smooth horizontal table with a portion h of the chain
a gas is compressed from a volume v1 to a volume v2 by following the path shown in the diagram p p0 - cv where c is a
if we have two different elements and each has an electron drop from the first excited state to the ground state they
galaxy b moves away from galaxy a at 0567 of the speed of light galaxy c moves away from galaxy b in the same direction
a gate of 400m wide and 200m hight weighs 750n its center of gravity is at its center and it is hinged at a and b to
the expanding gases that leave the muzzle of a rifle also contribute to the recoil a 30 caliber bullet has mass 72010-3
boxes a and b are in contact on a horizontal frictionless surface as shown box a has mass 1750 kg and b has mass 80 kg
a river flows due south with speed of 20ms a man steers a motorboat across the river the river is 800m wide at what
an astronaut on the planet trumpiter tosses a golfball horizontally with a speed of 345msec the ball falls through a
a the lifetime of a highly unstable nucleus is 10-10 s what is the smallest uncertainty in its decay energy evb what
a wheel of radius 029 m is rotating at a uniform rate if a point at the outer edge of the wheel has a speed of 25 ms
a diffraction grating has 12600 rulings uniformly spaced over width w254 mm it is illuminated at normal incidence by
the marginal cost of production measures the change in total cost of a good that arises from producing one additional
a series rlc circuit is operating at 368 khz at this frequency the phase angle between current and the emf source is
a car has a constant acceleration at 30m its speed is 30 ms and at 30 seconds its speed is 40 ms while it is at rest at
an ac adapter for a telephone-answering unit uses a transformer to reduce the line voltage of 120 v rms to a voltage of
a sinusoidal wave is traveling on a string with speed 745 cms the displacement of the particles of the string
a flexible electric circuit sits on a desk in a magnetic field perpendicular to and pointing into the deskwhich way cw